Monthly Archives - August 2017

FAIRCRETE RMW

INTEGRAL WATERPROOFING ADDITIVE FOR CONCRETE AND PLASTER

Water leakage and seepage is the enemy of all structures. It is important to build correctly with due attention to water proofing of basements, exterior walls, roofs and building watertight pipelines. Large numbers of structures lack proper implementation and thereby have less life. If water enters and starts damaging any part of the structure, early repair action must be taken. For excessive damaged structure restoration may be possible by use of repair chemicals after ensuring structural safety.
We realize there is a need to provide building professionals with suitable specialized information to enable them to ensure higher life of all structures. FAIRMATE CHEMICALS PVT. LTD. is a step in that direction. In the developed countries, use of Construction Chemicals is quite extensive. India has to catch up with high growth rates in this field.
Leakage is a common problem in any home or structure, caused either by the age of the structure, or improper
construction and design methods. Some of the most common reasons for water leakage in structures are elaborated below:

1.Construction Practices

• Untrained man power
• Improper preparation of mortar and concrete mixes
• Use of excess water for to make mixes easily workable, which results in porous concrete, inviting leakage.
• Bleeding & segregation in concrete resulting in honey combing/voids
• Inappropriate compaction/vibration of concrete
• Inadequate curing in early and later stages
• Negligence in site supervision.

2.Inappropriate Material Selection

Enough care is not taken in specifying the correct construction materials such as :

• Right quality & grade of cement depending on service requirements
• Good quality crushed aggregates of various sizes depending on mix proportion
• Sand free from silt and other chemicals
• Potable water, i.e. water should not contain any chlorides, etc.
• Other chemical and mineral additives that can increase the durability of construction

3.Aggressive Climatic Conditions

Environment plays an important role in determining the durability of any structure. More aggressive the climate, more stringent is the precautions to be taken. Structures which are exposed to marine regions or situated in polluting industrial belts, are more prone to chemical attack.

4.Mechanical Damage

Concrete structures are not often used only for the purpose they have been designed, but subjected to forces such as excessive loading, impact, abrasion and other mechanical damages. As a result, structural cracks develop in slabs. These too contribute to the problem.

5.Inadequate Maintenance

Problems like cracks, dampness, etc. are neglected in the initial stages and timely corrective measures are not undertaken, ultimately leading to deterioration of the structure. It is advisable to undertake preventive maintenance and carry out timely repairs through a competent contractor, the correct specification for materials and methods, depending upon the problem.

Diagnosing the root cause of the problem is vital. Only then a suitable solution can be arrived.
The treatment will then be cost effective from the long term point of view. Repair or maintenance must be done

systematically as under:
Visual inspection

Non destructive testing as advised by a consultant or an expert, if required Once the diagnosis is done, a proper scheme can be made to undertake repair and rehabilitation work using suitable materials aided by construction chemicals.

Benefits
• Ensures perfect watertight structure
• Reduces water penetration
• Reduces mortar dropping , when used in plaster.
• Reduces CO2 attack.
• Contains no flammable ingredients and is non corrosive.
• Very low cost
• Increase plasticity of concrete, thus it flows easily without increase in water and better compaction is achieved.
• Does not affecting the setting time of the concrete and mortar.
• Becomes an integral part of the concrete.
• Reduces efflorescence.

Description

FAIRCRETE RMW is an integral, high performance waterproofing additive is based on high performance polymers, which reduces the permeability throughout the depth of concrete. It confirms to IS 2645 – 2003. FAIRCRETE RMW is approved by Bureau of Indian Standard vide ISI registration no.CM/L7648592.
FAIRCRETE RMW is unique liquid waterproofing additive for concrete. It consists of a water based suspension of inorganic waterproofing agents in a solution of various polymers and is added to the concrete during the batching process or in a ready-mix truck with full mixing capabilities. In addition to its water proofing characteristics FAIRCRETE RMW also significantly increases the compressive strength and freeze-thaw resistance of concrete and acts as a super plasticizer.

USES
FAIRCRETE RMW is used to minimize permeability and porosity of concrete and cement sand mortar. Useful product for water retaining structures like terrace, chajjas, water tanks, parapets, bathroom, toilets and industrial structures like reservoirs, cooling tower etc.,

APPLICATION

Plaster : FAIRCRETE RMW is ideal for use with all sand and cement mortars where it is required to reduce permeability to a minimum.

Concrete : FAIRCRETE RMW is recommended for all general concrete work where the risk of porosity and permeability must be minimised. Eg. basements, bund walls, tanks, balcony, floor and roof slabs.
The required quantity of FAIRCRETE RMW is measured and poured with the regular pouring of water in case of conventional concreting. Separate dispensing system is required for RMC plants.
FAIRCRETE RMW water mixture shall be added to the concrete or mortar and mixed thoroughly. Mixing shall be continued and further water shall be added until the required workability is obtained. The total amount of water added per mix in the initial batches shall be maintained for the remaining batches.

PACKING & DOSAGE
FAIRCRETE RMW can be added in 150-200ml per bag of cement. Optimum dosage is 150ml/50 kg. cement.
FAIRCRETE RMW is supplied in 150ml, 500ml, 1, 5, 10, 50, 100, 200 ltr. carboys.

ROADCRETE MACADAM

A FAST SETTING, GENERAL PURPOSE INSTANT BITUMEN BASED ROAD REPAIR MORTAR

DESCRIPTION:
ROADCRETE MACADAM is a single part bitumen based road repair mortar composed of a factory controlled fully graded hard stone material, fine aggregates, formulated bitumen contains and special additives. It is a fast curing, high strength trowel applied mortar designed for instant rapid mortar. Its
rapid set characteristics allow a fast return of the road to traffic. The product is chloride free and can be safely used in contact with reinforcing steel. This material is capable of being applied in wet condition where the temperature ranges from 5 0 C TO 500 C.

BENEFITS:

• Excellent bond to concrete substrate
• Extremely low permeability provides protection against carbon dioxide and chlorides
• Rapid repair time
• High strength
• Fast setting
• Easy to use
• Cost effective instant road repair mortar
• Open for the traffic for shortage timing
• Can be used for man hole cover
• It will not peel, crumble, dust or crack
• Permanent repair to spelled & damaged concrete
• Freeze thaw durability better than standard concrete
• Minimum labour required.

TYPICAL PROPERTIES:

ROADCRETE MACADAM is conforming to requirement of ASTM D- 1664 and ASTM D-2027 modified as follows.
Flash point 790 c mini.
Sybolt furol viscosity at 600 c 200- 500 sec
Water 0.2% maxi.
Distillate test To 2250 c: None
To 2600 c 0-15%
To 3150 c 15-75%
Residual at 3600 c 73-90%
Residue tests:
Penetration at 250 c 150 -300
Ductility at 250 c 100 cm minimum
Solubility in trichloroethylene 99 % minimum

WHERE TO USE:
Permanent reinstatement of opening in carriageways, footways, cycles paths, private drives, reinstatement of pot holes. Remedial repairs around manholes.

LYING: Minimum thickness 15 mm.

CURING: No curing is required.

COVERAGE: The depth & width of pothole, crack, utility cut etc. will greatly influence the coverage rate achieved.

CLEAN UP: All tools should be cleaned immediately after use with a solvent base cleaner such as paint thinner or mineral spirit.

TESTING: FIVE CATEGORIES WERE DEFINED AND RATED AS FOLLOWS.

1. Bleeding: Is the flushing of the asphalt binder to the surface of the patch. IT caused by a combination of traffic loads, insufficient voids in the mix, or too much binder in the mix. Bleeding may cause poor skid resistance. – The use of open (gap) gradation and lower binder content should keep bleeding to a minimum.

2. Dishing: Is the further compaction of the patch under traffic loads. It is the result of material instability and inadequate compaction during the placement of the material. Compatibility is related to workability. Mixes with poor workability is difficult to compact. To determine the amount of dishing, a 1-m metal bar was placed across the patch parallel with the direction of travel. The amount of dishing was measured with a ruler accurate to 1.5 mm in the centre of each quadrant. The ratings were determined from the depth measurements.

3. Debonding: Occurs when the patch material loss its adhesion to the pavement at the bottom and/or sides of the pothole. When debonding occurs, the patch material can be pulled out of the hole by traffic, so the patch fails. It can be determined by disintegration i.e. the cracking cause at the edge of the patch for each quadrant. Missing patch was evaluated as a large scale loss of material. In some cases, these appeared to the cohesion failures rather than adhesion failures as all of the remaining particles were fully coated.

4. Raveling: is the loss of aggregate form the surface of the patch. Raveling is cause by stripping, poor cohesion, excessive fine aggregates and poor aggregates interlock of the patch material.

5. Pushing and shoving: is the vertical or horizontal movement of the patch material in the pothole.

The behavior of the ROADCRETE MACADAM in the above testing is very good.

WORKABILITY TEST:

The workability of the mixture was examined using the pennsylania transportation institute/ strategic highway research program (PTI / SHRP). For the PTI test, the sample is loosely placed in a 102 mm cubical box with a 10 mm hole centered on one side. A soil penetrometer with a round nose adapter 10 mm in diameter is pressed through the hole into the material. The value from the penetrometer is recorded as the workability reading.

The workability of the material was evaluated after they had been stored for 6 months as a measure of their storage ability.

The ROADCRETE MACADAM results of the workability surveys are good.
The evaluated at 7 and 14 days and 1, 3, 8, 9 and 12 months after placement.

PACKING AND COVERAGE:

ROADCRETE MACADAM is supplied 25 kg packs A 25 kg pack yields 12.5 ltr of mortars sufficient for 0.75m2 @ 25 mm thick.

FAIRCOAT SCREED

TEXTURED PROTECTIVE, DECORATIVE, ANTI-CARBONATION ACRYLIC SCREED FOR EXTERIOR / INTERIOR SURFACES

Benefits
1. Gives a textured finish
2. Anti-carbonation properties
3. Good weathering properties
4. Excellent bond.
5. Forms tough acrylic plaster
6. Allows substrate to breathe
7. Choice of colours
8. Single pack, Trowel applied
9. Non toxic/Non flammable
10. Excellent waterproof coating

Description

FAIRCOAT SCREED is ready to use acrylic based screed containing special polymers and fillers. It is a textured protective, decorative anti-carbonation screed for interior and exterior surfaces with exceptional weathering characteristics.

Recommended Uses

FAIRCOAT SCREED is used to provide a textured decorative durable coating for concrete and masonry surfaces. One coat application is recommended with a thickness of 1.5 to 2 mm.

Application Instructions

Surface Preparation :
Substrates must be clean, sound and free from dust and loose particles. All holes and cracks must be filled with a suitable filler. All traces of oil, grease or other contaminations must be removed. The new concrete surfaces must be atleast 14 days old before coating. If in doubt, allow full curing to take place for 28 days before application of FAIRCOAT SCREED.

Priming :
On old or porous surfaces, ensure that the substrate is sound and free from any loose particles. Apply FAIRCRETE SBL, apply FAIRCOAT SCREED on the primed surface.

Application :
Stir the material in the container thoroughly and spread evenly with trowel. Avoid application during rainy weather. The surface texture and porosity must be taken into account while estimating quantities.

Cleaning :
Tools should be cleaned immediately after use with water.